Definition of Volcanic bomb. Meaning of Volcanic bomb. Synonyms of Volcanic bomb

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Definition of Volcanic bomb

Volcanic bomb
Volcanic Vol*can"ic, a. [Cf. F. volcanique, It. vulcanico.] 1. Of or pertaining to a volcano or volcanoes; as, volcanic heat. 2. Produced by a volcano, or, more generally, by igneous agencies; as, volcanic tufa. 3. Changed or affected by the heat of a volcano. Volcanic bomb, a mass ejected from a volcano, often of molten lava having a rounded form. Volcanic cone, a hill, conical in form, built up of cinders, tufa, or lava, during volcanic eruptions. Volcanic foci, the subterranean centers of volcanic action; the points beneath volcanoes where the causes producing volcanic phenomena are most active. Volcanic glass, the vitreous form of lava, produced by sudden cooling; obsidian. See Obsidian. Volcanic mud, fetid, sulphurous mud discharged by a volcano. Volcanic rocks, rocks which have been produced from the discharges of volcanic matter, as the various kinds of basalt, trachyte, scoria, obsidian, etc., whether compact, scoriaceous, or vitreous.
Volcanic bomb
Bomb Bomb, n. [F. bombe bombshell, fr. L. bombus a humming or buzzing noise, Gr. ?.] 1. A great noise; a hollow sound. [Obs.] A pillar of iron . . . which if you had struck, would make . . . a great bomb in the chamber beneath. --Bacon. 2. (Mil.) A shell; esp. a spherical shell, like those fired from mortars. See Shell. 3. A bomb ketch. Bomb chest (Mil.), a chest filled with bombs, or only with gunpowder, placed under ground, to cause destruction by its explosion. Bomb ketch, Bomb vessel (Naut.), a small ketch or vessel, very strongly built, on which mortars are mounted to be used in naval bombardments; -- called also mortar vessel. Bomb lance, a lance or harpoon with an explosive head, used in whale fishing. Volcanic bomb, a mass of lava of a spherical or pear shape. ``I noticed volcanic bombs.' --Darwin.

Meaning of Volcanic bomb from wikipedia

- A volcanic bomb or lava bomb is a m**** of partially molten rock (tephra) larger than 64 mm (2.5 inches) in diameter, formed when a volcano ejects viscous...
- Several types of volcanic eruptions—during which material is expelled from a volcanic vent or fissure—have been distinguished by volcanologists. These...
- been recorded causing volcanic bombs to be destructive. Lahars (from a Javanese term for volcanic mudflows) are a mixture of volcanic debris and water. Lahars...
- estimated that volcanic rocks cover about 8% of the Earth's current land surface. Lava Tephra Volcanic bomb Lapilli Volcanic ash Volcanic rocks are usually...
- cone, volcanic crater, and volcanic bomb. Scientific journals have studied the volcanic geology of the area, identifying the rocks of volcanic appearance...
- eruptions consist of ejection of incandescent cinders, lapilli, and volcanic bombs, to altitudes of tens to a few hundreds of metres. The eruptions are...
- are dangerous to persons within several hundred metres of the vent. Volcanic bombs are common products of this type of eruption. These are initially molten...
- volcanic bomb when molten, or a volcanic block when solid. Pyroclastic material with particles less than 2 mm in diameter is referred to as volcanic ash...
- material for dangerous lahars. Large pieces of tephra are called volcanic bombs. Big bombs can measure more than 1.2 metres (4 ft) across and weigh several...
- Peléan eruptions are a type of volcanic eruption. They can occur when viscous magma, typically of rhyolitic or andesitic type, is involved, and share some...